[He's trying. Luke might not quite know why she's so tense, feels so upset, but he can at least try to keep the atmosphere from getting too tense.]

I've been there, so it's familiar ground.

[Even without the tether, she's pretty easy to read right now. That something is clearly Very Wrong. What she says next? Definitely not what he'd been expecting.]

Not what you were expecting I take it.

[A lopsided smile. After all, he's learned a lot about his parents since arriving here.]

... You're worried I'll think differently about you because of it.

[Not a question.]